One Earth is More Than Enough

 One Earth is More Than Enough

This is strictly my own personal theory, but even if the birth of life is a miracle in this universe, that miracle is happening right here on Earth. Life began on Earth about 4.5 billion years ago, and while humanity proudly boasts of being the "pinnacle of primates," I think it wouldn't be strange at all if other species - following a completely different evolutionary path - had already developed a civilization far more advanced than ours and ventured out into space. As the saying goes, "First start with what is closest to you."

Given how vast the universe is, it wouldn't be surprising if there were 36 such civilizations out there, but by that same logic, one Earth is more than enough. A planet where so many miracles aligned for life to be born cannot be all that common.

According to my theory, while it might not apply to every single one of them, a significant number of aliens actually originated from Earth.

Humans developed tools and writing using five fingers. Typewriters were invented only recently, and even now, each index finger covers about six letters - so it is only natural that someone would start thinking, "Come to think of it, we don't really need all five fingers." This is where the topic of evolution comes in.

Aliens are often depicted with exceptionally large heads and eyes, fewer fingers, and frail bodies - which is exactly the direction modern humans are heading. Occasionally, reptilian or insectoid aliens appear in stories, and I think that is totally plausible too, as branches that split off from Earth's life.

Just as the living domain of ants holds no real interest for humans, aliens who have soared into the universe likely couldn't care less about the human domain.

There are photos allegedly taken with aliens, and countless photos of UFOs out there. While some are undoubtedly fakes, others might be real. The reason it doesn't become a massive issue is precisely because our living domains are completely different, as I mentioned above.

Yet, even for a complete amateur like myself, I feel like what I've just laid out isn't that difficult to imagine.